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CVE-2026-27131

Sprig Plugin for Craft CMS potentially discloses sensitive information via Sprig Playground

5.5 MediumFix available

The Sprig Plugin for Craft CMS is a reactive Twig component framework for Craft CMS. Starting in version 2.0.0 and prior to versions 2.15.2 and 3.15.2, admin users, and users with explicit permission to access the Sprig Playground, could potentially expose the security key, credentials, and other sensitive configuration data, in addition to running the hashData() signing function. This issue was mitigated in versions 3.15.2 and 2.15.2 by disabling access to the Sprig Playground entirely when devMode is disabled, by default. It is possible to override this behavior using a new enablePlaygroundWhenDevModeDisabled that defaults to false.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
High
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
Low
Availability
None

Exploit likelihood

0.26%Up 0.2 points since Mar 24, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.5

Sprig Plugin for Craft CMS potentially discloses sensitive information via Sprig Playground

The Sprig Plugin for Craft CMS is a reactive Twig component framework for Craft CMS. Starting in version 2.0.0 and prior to versions 2.15.2 and 3.15.2, admin users, and users with explicit permission to access the Sprig Playground, could potentially expose the security key, credentials, and other sensitive configuration data, in addition to running the hashData() signing function. This issue was mitigated in versions 3.15.2 and 2.15.2 by disabling access to the Sprig Playground entirely when devMode is disabled, by default. It is possible to override this behavior using a new enablePlaygroundWhenDevModeDisabled that defaults to false.

Record
CVE-2026-27131
CVSS 3.1
5.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Weakness
CWE-200, CWE-489
Updated
2026-11-02
EUVDEUVD-2026-14515 5.5

The Sprig Plugin for Craft CMS is a reactive Twig component framework for Craft CMS. Starting in version 2.0.0 and prior to versions 2.15.2 and 3.15.2, admin users, and users with explicit permission to access the Sprig Playground, could potentially expose the security key, credentials, and other sensitive configuration data, in addition to running the hashData() signing function. This issue was mitigated in versions 3.15.2 and 2.15.2 by disabling access to the Sprig Playground entirely when devMode is disabled, by default. It is possible to override this behavior using a new enablePlaygroundWhenDevModeDisabled that defaults to false.

Record
EUVD-2026-14515
CVSS 3.1
5.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-m59h-42jf-cphr 5.5

Sprig Plugin for Craft CMS potentially discloses sensitive information via Sprig Playground

Admin users, and users with explicit permission to access the Sprig Playground, could potentially expose the security key, credentials, and other sensitive configuration data, in addition to running the hashData() signing function.

This issue was mitigated in versions 3.7.2 and 2.15.2 by disabling access to the Sprig Playground entirely when devMode is disabled, by default. It is possible to override this behaviour using a new enablePlaygroundWhenDevModeDisabled that defaults to false.

References:

Record
GHSA-m59h-42jf-cphr
CVSS 3.1
5.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Weakness
CWE-200, CWE-489
Updated
2026-11-02
NVD 5.5

The Sprig Plugin for Craft CMS is a reactive Twig component framework for Craft CMS. Starting in version 2.0.0 and prior to versions 2.15.2 and 3.15.2, admin users, and users with explicit permission to access the Sprig Playground, could potentially expose the security key, credentials, and other sensitive configuration data, in addition to running the hashData() signing function. This issue was mitigated in versions 3.15.2 and 2.15.2 by disabling access to the Sprig Playground entirely when devMode is disabled, by default. It is possible to override this behavior using a new enablePlaygroundWhenDevModeDisabled that defaults to false.

Record
CVE-2026-27131
CVSS 3.1
5.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Weakness
CWE-200, CWE-489
Updated
2026-11-02
OSV 5.5

Sprig Plugin for Craft CMS potentially discloses sensitive information via Sprig Playground

The Sprig Plugin for Craft CMS is a reactive Twig component framework for Craft CMS. Starting in version 2.0.0 and prior to versions 2.15.2 and 3.15.2, admin users, and users with explicit permission to access the Sprig Playground, could potentially expose the security key, credentials, and other sensitive configuration data, in addition to running the hashData() signing function. This issue was mitigated in versions 3.15.2 and 2.15.2 by disabling access to the Sprig Playground entirely when devMode is disabled, by default. It is possible to override this behavior using a new enablePlaygroundWhenDevModeDisabled that defaults to false.

Record
CVE-2026-27131
CVSS 3.1
5.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Weakness
CWE-200, CWE-489
Updated
2026-11-02
OSVGHSA-m59h-42jf-cphr 5.5

Sprig Plugin for Craft CMS potentially discloses sensitive information via Sprig Playground

Admin users, and users with explicit permission to access the Sprig Playground, could potentially expose the security key, credentials, and other sensitive configuration data, in addition to running the hashData() signing function.

This issue was mitigated in versions 3.7.2 and 2.15.2 by disabling access to the Sprig Playground entirely when devMode is disabled, by default. It is possible to override this behaviour using a new enablePlaygroundWhenDevModeDisabled that defaults to false.

References:

Record
GHSA-m59h-42jf-cphr
CVSS 3.1
5.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Weakness
CWE-200, CWE-489
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
putyourlightson/craft-sprig
Packagist
2.0.0 up to 2.15.2
2.15.2
putyourlightson/craft-sprig
Packagist
3.0.0 up to 3.7.2
3.7.2
putyourlightson/craft-sprig
Packagist
2.0.0 up to 2.15.2, plus listed versions
2.0.12.1.02.10.02.10.12.11.0
Show 24 moreShow less
2.12.02.13.02.13.12.14.02.14.12.15.02.15.12.2.02.2.12.3.02.4.02.5.02.5.12.6.02.6.12.6.22.7.02.7.12.7.22.7.32.8.02.8.12.9.02.9.0-beta.1
2.15.2
putyourlightson/craft-sprig
Packagist
3.0.0 up to 3.7.2, plus listed versions
3.0.13.0.23.1.03.1.0-beta.13.2.0
Show 10 moreShow less
3.2.13.3.03.4.03.5.03.5.13.5.23.6.03.6.13.7.03.7.1
3.7.2

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-27131 is a medium vulnerability (CVSS 5.5) in Putyourlightson Craft-sprig, published March 23, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 18th percentile. Fixed in putyourlightson/craft-sprig 2.15.2.

References

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